external/gpl2/lvm2/dist/tools/vgcfgrestore.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
   5  * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
   6  *
   7  * This file is part of LVM2.
   8  *
   9  * This copyrighted material is made available to anyone wishing to use,
  10  * modify, copy, or redistribute it subject to the terms and conditions
  11  * of the GNU Lesser General Public License v.2.1.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #include "tools.h"
  19
  20 int vgcfgrestore(struct cmd_context *cmd, int argc, char **argv)
  21 {
  22         char *vg_name = NULL;
  23
  24         if (argc == 1) {
  25                 vg_name = skip_dev_dir(cmd, argv[0], NULL);
  26                 if (!validate_name(vg_name)) {
  27                         log_error("Volume group name \"%s\" is invalid", vg_name);
  28                         return ECMD_FAILED;
  29                 }
  30         } else if (!(arg_count(cmd, list_ARG) && arg_count(cmd, file_ARG))) {
  31                 log_error("Please specify a *single* volume group to restore.");
  32                 return ECMD_FAILED;
  33         }
  34
  35         /*
  36          * FIXME: overloading the -l arg for now to display a
  37          * list of archive files for a particular vg
  38          */
  39         if (arg_count(cmd, list_ARG)) {
  40                 if (!(arg_count(cmd,file_ARG) ?
  41                             archive_display_file(cmd,
  42                                 arg_str_value(cmd, file_ARG, "")) :
  43                             archive_display(cmd, vg_name))) {
  44                         stack;
  45                         return ECMD_FAILED;
  46                 }
  47                 return ECMD_PROCESSED;
  48         }
  49
  50         if (!lock_vol(cmd, vg_name, LCK_VG_WRITE)) {
  51                 log_error("Unable to lock volume group %s", vg_name);
  52                 return ECMD_FAILED;
  53         }
  54
  55         if (!lock_vol(cmd, VG_ORPHANS, LCK_VG_WRITE)) {
  56                 log_error("Unable to lock orphans");
  57                 unlock_vg(cmd, vg_name);
  58                 return ECMD_FAILED;
  59         }
  60
  61         cmd->handles_unknown_segments = 1;
  62
  63         if (!(arg_count(cmd, file_ARG) ?
  64               backup_restore_from_file(cmd, vg_name,
  65                                        arg_str_value(cmd, file_ARG, "")) :
  66               backup_restore(cmd, vg_name))) {
  67                 unlock_vg(cmd, VG_ORPHANS);
  68                 unlock_vg(cmd, vg_name);
  69                 log_error("Restore failed.");
  70                 return ECMD_FAILED;
  71         }
  72
  73         log_print("Restored volume group %s", vg_name);
  74
  75         unlock_vg(cmd, VG_ORPHANS);
  76         unlock_vg(cmd, vg_name);
  77         return ECMD_PROCESSED;
  78 }